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2150EX Area Velocity Flow Module
Section 5 Maintenance
5-3
WARNING
Substitution of components may impair intrinsic safety.
WARNING
To avoid overloading the fuses in the lithium LTC2191EX
battery packs, disconnect the 2150EX module(s) before
installing or replacing battery packs.
Figure 5-1 Illustration of LTC2191EX Battery Packs
To install the lithium LTC2191EX battery packs, first disconnect
the 2150EX module(s) and then:
1. Remove the battery door. To remove the door, turn it
1
/4 turn
counter-clockwise and pull it from the Battery Module.
2. Align the connectors and insert the new battery pack into
the Battery Module.
3. Check the humidity indicator disk inside the door. (See sec-
tion 5.4.2.)
4. Replace the door. Align the small triangle on the door with
the triangle above the battery port, push inward, and
rotate
1
/4 turn clockwise so the curved arrow is at the top of
the door.
Repeat steps 1 through 4 to install the second battery pack.
When finished, reconnect the 2150EX module(s).
Note
The battery packs should always be replaced as a pair. Never
mix old and new batteries. Battery packs should be disposed
of according to local battery disposal regulations.
Battery Pack
Door